Title:
CASING POSITION ADJUSTMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/169483
Kind Code:
A1
Abstract:
In a steam turbine equipped with a rotor (12) a free-end part of which is secured in the radial direction by means of a journal bearing (not shown in the figures) and a secured-end part of which is secured in the axial direction by a thrust bearing (16), and a casing (11) a secured-end part of which is secured in the axial direction (rotor axial direction) by means of the thrust bearing (16), this casing position adjustment device, which adjusts the radial position of the casing 11 with respect to the rotor (12) due to thermal elongation, is equipped with: diaphragm-shaped low-pressure casing end plates (11a), which are end plates of the low-pressure casing of the casing (11) that face the free side in the axial direction, and are capable of being deformed in the axial direction; and an actuator (17) that causes the low-pressure casing end plates (11a) to deform so as to elongate toward the free side in the axial direction.
Inventors:
HORI TAKUMI (JP)
UEHARA HIDEKAZU (JP)
SAEKI KENTAROU (JP)
HAMADA KATSUHISA (JP)
UEHARA HIDEKAZU (JP)
SAEKI KENTAROU (JP)
HAMADA KATSUHISA (JP)
Application Number:
PCT/JP2017/008017
Publication Date:
October 05, 2017
Filing Date:
February 28, 2017
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F01D25/28; F01D25/00; F01D25/24; F01D25/26
Foreign References:
| JP2013170468A | 2013-09-02 | |||
| JPH04132805A | 1992-05-07 | |||
| GB995473A | 1965-06-16 | |||
| JPS5260313A | 1977-05-18 |
Attorney, Agent or Firm:
MITSUISHI, Toshiro et al. (JP)
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